Chinese Pork Buns (Cha Siu Bao)
Hoisin sauce, also called Peking sauce, is a thick, reddish-brown sauce that is sweet and spicy, and widely used in Chinese cooking. It's a mixture of soybeans, garlic, chile peppers and various spices. It can be found in Asian markets and many large supermarkets. Look in the Asian or ethnic section. If this item is not in stock at your local store, ask your grocer to special order it for you. Most grocers will be happy to do this for their customers.